词汇	double geared
释义	double geared 🌏二级齿轮传动的
随便看	sudden-expansion sudden expansion flow sudden-expansion flow sudden expansion laminar flow sudden facial distortion sudden failure sudden faintness Suddenly a warning light blinked Suddenly,a whistle startled the goddess Suddenly, a whistle startled the goddess sudden fall sudden falling Sudden feeling of faintness sudden fiction sudden field anomaly sudden field anomaly, SFA sudden flare sudden flash sudden flood sudden-freeze approximation sudden frequency deviation sudden frequency deviation, SFD sudden fright in children sudden gaseous discharge sudden gas outburst